Brass shavings in my oil filter?

I pulled the oil filter on my Yamaha and it's got lots of metal shavings in there. I was assuming it was bearing material (excessive bearing material), but it sure looks like it's brass.

Motor is a 2000 Yamaha F100 4 stroke.

So the question is where are the shavings come from? Could it be crank/rod bearings with that visual appearance, or do I have a wrist pin issue?

[Dennisg]

just a question , what brand- weight oil are you using??
Dennis

[boats.net]

Don't know of any brass bearings in engine.

just a question , what brand- weight oil are you using??
Dennis

Wish I new. I actually got the motor like this. I paid for the boat and the motor came free.

[bbelk]

oops

I am trying to figure out how to start a new thread. Sorry to hijack yours.
Brad